Blender Texturing Problem, cant figure it out
You need a texture coordinate node and a mapping node.

It might be wise to use a Principled BDSF also.

I couldn't check if it was correct because the images were not packed into the blend file but this was the first thing I saw.

Also in your Diffuse Shader, there is a normal input where your normal map goes if you still prefer to use a Diffuse Colour node.
Purple coloured slots use vector information.
Gray coloured slots are for black and white images/info. So the displacement slot on the material output is only really good for grayscale Displacement maps.



Let me know if that works for you now :)